Question

Composition (at% Sn) 60 0 20 10 80 100 327°C 600 300 Liquid 500 232°C a + L 200 183°C B+ 400 B Temperature (°C) Temperature (°F) 18.3 61.9 97.8 300 100 +B 200 100 20 40 60 80 100 (Sn) (Pb) Composition (wt% Sn)

Answer 1

a) Maximum solubility of Sn in Pb is 18.3% at 183°C.

b) 255°C approx.

We know that above the liquidus line, both the components are in liquid phase. As the temperature falls below liquidus line at that given composition, solid starts to form.

So, here at the given composition(30%Sn), the liquidus line is at temp. 255°C. So, it is the answer.

c) 61.9%

Eutectic point is the point at which liquid phase directly changes into solid phase( or vice-versa), without forming a liquid-solid mixture.

d) Detailed solution for this part has been described in the image below:

However, if still any doubt or query regarding anything in this problem, feel free to ask in the comments section below. I'll be happy to help you out with that..

201 Decupati Date 11 Page :|| AL_100's we con see krom the graph that Co = 400% {Given] Con composition of 0 : 5% Similarly los composition of B: 99% calculated by Now, Weight using lever rulei berreptages can be وليا { lever Rude Co-Co * Co-la 0.99 - 04 0.99-005 *100 Weight of alloy is (U=1009 0-627 X100 62.7 a = Similarly, Wp : Co-ta x W Tg-Ca 0.4-005 *100 0.99-005 0.372*100 37.29m WB